If you get Your Outlook data file cannot be configured error when opening Microsoft Outlook and your email account, see this post for the fixes.

Use the Inbox Repair tool or disable add-ons to recover your .PST and .OST files in Microsoft Outlook Classic and New ...

The Stellar Repair for Outlook tool has been specifically designed to help you fix any errors and corruption on PST files and help you easily and quickly recover your important data.

If such files get corrupted, Microsoft Office 365 Outlook Repair Tool can help you recover messages, contacts, attachments, and other data from corrupted PST or OST files.

To fix the issue, verify the Outlook indexing status, ensure the Windows Search service is enabled, rebuild the Windows Search catalog, or modify indexing options.

For many, Windows Outlook silently crashed when they tried to launch it. Many Office 365 business users also found that the Outlook mail service also launched only to immediately crash.